Aww, she's beautiful. I don't have any experience with age-related cataracts, but we adopted a dog with juvenile cataracts - Sherman. I researched it a good bit first. We opted not to have surgery because he's adjusted fairly well, and he has pretty good peripheral vision. I think if he could hardly see at all, we might have one eye done. My vet told me that just having one eye done will greatly improve their quality of life. He says most dogs do well if they at least have one good eye. You might want to check that out. I have no idea about cost.